If you are looking for reading an intelligent, imaginative, intriguing #DoctorWho spin off series featuring The Valeyard as the main character, lore galore, obvious and not-so-obvious humor, compelling original characters that work really well in the whoniverse, and deep questions about morality, look no further than "Darker Side" by nostr:npub1r2758s2sf3kkv0ku6xasy20udv5wg6fh98s89d2y6ws9a6syeyrs58yfqy 
I just embarked into the sixth story "Nemo Dat Quod Non Habet" and seriously hope it isn't the last one...

https://archiveofourown.org/series/2590063